package com.gongyi.reflection;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

//获取类的信息
public class Test08 {
    public static void main(String[] args) throws ClassNotFoundException, NoSuchFieldException, NoSuchMethodException {
        Class c1 = Class.forName("com.gongyi.reflection.User");

        System.out.println(c1.getName());//获得包名 + 类名
        System.out.println(c1.getSimpleName());//获得类名
        //获得类的属性
        System.out.println("======================");
        Field[] fields = c1.getFields();//只能找到public属性
        for (Field field : fields) {
            System.out.println("getFields: " + field);
        }
        Field[] declaredFields = c1.getDeclaredFields();//找到全部的属性
        for (Field declaredField : declaredFields) {
            System.out.println("getDeclaredFields: " + declaredField);
        }
        /*Field name = c1.getField("name");
        System.out.println("getField:" + name);*/
        //获得指定属性的值
        Field declaredName = c1.getDeclaredField("name");
        System.out.println("getDeclaredField: " + declaredName);


        //获得类的方法
        System.out.println("======================");
        Method[] methods = c1.getMethods();//获得本类及其父类的全部public方法
        for (Method method : methods) {
            System.out.println("getMethods: " + method);
        }
        methods = c1.getDeclaredMethods();//获得本类的所有方法
        for (Method method : methods) {
            System.out.println("getDeclaredMethods: " + method);
        }
        //获得指定方法
        //重载
        Method getName = c1.getMethod("getName", null);
        Method setName = c1.getMethod("setName", String.class);
        System.out.println(getName);
        System.out.println(setName);

        //获得指定的构造器
        System.out.println("======================");
        Constructor[] constructors = c1.getConstructors();
        for (Constructor constructor : constructors) {
            System.out.println("getConstructors:" + constructor);
        }
        constructors = c1.getDeclaredConstructors();
        for (Constructor constructor : constructors) {
            System.out.println("getDeclaredConstructors:" + constructor);
        }
        //获得指定的构造器
        Constructor declaredConstructor = c1.getDeclaredConstructor(String.class, int.class, int.class);
        System.out.println("declaredConstructor:" + declaredConstructor);


    }
}
